Machining center



FIG. 1 is a front view of a machining center showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is an enlarged perspective view of the portion of a machining center which is indicated by line 7—7 of FIG. 3. 

The ornamental design for a machining center, as shown and described. 